In reply to zakmacro: I have one and think its great. perfect for making tea/coffee and boil in the bags. The only drawback is the stove isnt as controllable as it could be, but not too much of a problem.

if you want minimal weight for non-winter stuff, get a pocket rocket or some such.

if you want to use it in a tent/bivvy, hang it or take it winter climbing then a jetboil has the edge.

what i like: its easy to use, safe as a stove gets, easy to swap canisters, easy to adapt to hanging, convenient, efficient enough, light enough and easy to get bits for. theres an adapter for a pan or whatever if you want to really cook, and tho theres been problems with the igniter, my original is still fine and gets first hit most of the time.

what i dont like: some of the bits are fragile (the plastic cup, the neoprene cover - no laughing jadias! - the lid doesnt always fit).

in the end its still the stove i take unless i need a multifuel or am in a lodge/civilization when i use a reactor. the big sumo pot increases efficiency for little weight so definitely get that if you can (tho you need an existing stove base, so they gouge you there).

In reply to zakmacro: Is ok for day trips, but if spending a few days on the wall or in the jungle it is useless as it can not cook food (unless cooking hotdogs in which case a can of 10 hotdogs fits perfectly inside brime n all and is ideal. But is expensive for a kettle come hotdog boiler.
The white bit around the ignition thingy (excuse my technical speak) is fragile, infact the whole of the ignition set up is pretty fragile so best get an independent ignition doodar (again apologies). The canister I use does not fit inside the collapsed unit which is a bitch and would save loads of room, but again buying a smaller canister means buying 2 small canister for an extended trip (more space taken up). I have to say I prefer a stove and a pan I can do it all with. Primus Gravity was a good stove for me. I wouldn't buy another JB, but nice to have tried it.
Overall, depends what you want to do with it, drink coffee or eat food (other than hotdogs)

In reply to zakmacro:
Iíve had a jetboil since they very first appeared. My climbing partner was given 3 by Lyon equipment for his Atlantic solo row 5 years ago. He says they performed brilliantly over the 3 months of constant use. One came back unopened, one broke and one was in use. The one that broke had the common ignighter problem. The mk1 jetboils had an ignighter that stood proud of the top and it was very easy to knock it and break the ceramic insulation. Not a problem if youíve a lighter in your first aid kit. I understand the ignighters have now been dealt with on later models. Mine is still fine after some right old batterings over the years. It is basically a kettle. Try and do anything other than boil water and youíll be disappointed but for boiling water it is brilliant. Its fast and frugal on gas. Food wise think cup-a-soup, pot style snacks or dried food you pour water into the bag to cook. One niggle is that you make a brew then afterwards everything gets packed up back inside the jetboil. The little bit of water that remains in the pot comes into contact with your gas canister and the bottom rim of the gas canister will start to rust very quickly. You get rust stains on the inside of the jetboil pot then. Hard to remove, try wire wool. Itís my one number crag stove for making a brew quickly.
A bit more versitile than the jetboil but a bit more faffing around is a pocket rocket with a MSR Titan pot. Lighter overall than the JB, the PR and titan combo can be used for proper cooking of bivvy food if you want something other than instant-in-a-bag stuff. It canít be used hanging but with both systems their are pros and cons. Either way, if not a smoker then perhaps invest in a fire steel as ignighters canít be relied on as the sole ignition on any stove even though they are reliable. Also look out in the supermarket for Kenco 3-in-1 coffee packets, coffee, sugar and milk in one sachet. Oats-so-simple do a pot that just needs water pouring in to make a gloopy porridge stuff for breakfast.

In reply to every one:
Thanks for all the info and advice guys! After reading lots of other threads, reviews and watching some youtube reviews I THINK Iím going to buy one! I do alot of weekend trips out walking or climbing and I pretty much always eat ratípack style army rations and drink copious amounts of tea so the whole simple cooking ďdraw backĒ works fine for me! I also do the same think in my canoe and kayak so an all in one compact stove for making a brew would be a nice luxury!
Im going into town today and may or may not come back with one, Im also going away this weekend to north wales so watch this space for an angry rant or a stunning review!

They are ace if you just want something to make tea/coffee. You can take it the crag as its so compact and can fit a small brew kit in the top as well, so easy just to have in your bag if you go bouldering or whatever. And if you pricematch at gooutdoors, you get one for £54 which is a bargain.

In reply to zakmacro: often thought about getting one,but put off by the size of the thing.probably ideal for an expedition sleepover etc but for a day out i reckon you cant beat a small hot flask of soup + it will pack better aswell .

In reply to blanchie14c:
One niggle is that you make a brew then afterwards everything gets packed up back inside the jetboil. The little bit of water that remains in the pot comes into contact with your gas canister and the bottom rim of the gas canister will start to rust very quickly. You get rust stains on the inside of the jetboil pot then. Hard to remove, try wire wool.

Got the Flash and think it`s fantastic in all weather conditions, I got over the bit of water left after brewing up by just giving the pot a quick blast of heat when empty to dry it out.